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Finding the Fourth Proportional to 128,392.16, 192,592.49 and 44,151.48

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Solution

The fourth proportional to 128,392.16, 192,592.49 and 44,151.48 is: 66,228.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,392.16 : 192,592.49 = 44,151.48 : x
  2. Step 2: Convert to fraction form
    128,392.16/192,592.49 = 44,151.48/x
  3. Step 3: Cross multiply
    128,392.16x = 192,592.49 × 44,151.48
  4. Step 4: Simplify right side
    128,392.16x = 8,503,243,249.63
  5. Step 5: Solve for x
    x = 8,503,243,249.63/128,392.16
  6. Step 6: Final answer
    x = 66,228.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.